Home / 8,430.89-12,644.04-2,507.76

Finding the Fourth Proportional to 8,430.89, 12,644.04 and 2,507.76

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Solution

The fourth proportional to 8,430.89, 12,644.04 and 2,507.76 is: 3,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.89 : 12,644.04 = 2,507.76 : x
  2. Step 2: Convert to fraction form
    8,430.89/12,644.04 = 2,507.76/x
  3. Step 3: Cross multiply
    8,430.89x = 12,644.04 × 2,507.76
  4. Step 4: Simplify right side
    8,430.89x = 31,708,217.75
  5. Step 5: Solve for x
    x = 31,708,217.75/8,430.89
  6. Step 6: Final answer
    x = 3,760.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.